In addition to linear drives, FGB specifically develops and produces rotative drive systems in the shape of torque motors. These are usually multi-pole electrical direct drives from the group of slow runners. Torque motors therefore often have a very high torque at relatively low speeds.

The FGB torque motors are designed as outer rotors (stator inside, Rotor=’Rotors’ outside) and as inner rotors (rotor inside, stator outside). This means that the design of the drive can be adapted optimally to the respective technical requirements.

To boost the performance of the direct drives, FGB develops cooling systems that are perfectly tuned to the motor and intervene precisely where the heat is created. These leads to higher efficiency and better performance. This is usually implemented by means of active fan or liquid cooling. Here, the company can fall back on extensive experience from various applications.

Picture:
left: high speeed direct drive,14.000 rpm, dimensions 130x130mm, weight 10kg, power 20kW
middle: Torque motor RMI320-350, max. torque 8000Nm, hollow shaft 200mm
right: high power torque motor RMI 200-175, max. torque 1000Nm, speed ±6000 rpm,